“…A large body of literature investigates the productivity impact of product and labour market imperfections and of the anti-competitive regulations establishing and supporting them (see Cette et al, 2018, for survey). As shown in numerous papers, this impact could be large (see for instance Cette et al, 2016Cette et al, , 2018. Country fixed effects estimated in the previous relation capture all the factors that may structurally impact TFP and are not explicitly taken into account in relation (3), for instance regulation, the quality of management, corruption, etc.…”